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<LI><A NAME="tex2html2573"
  HREF="node121.html#SECTION00562100000000000000">4.6.2.1 Code Generation Options</A>
<LI><A NAME="tex2html2574"
  HREF="node121.html#SECTION00562200000000000000">4.6.2.2 Optimization Options</A>
<LI><A NAME="tex2html2575"
  HREF="node121.html#SECTION00562300000000000000">4.6.2.3 Assembling Options</A>
<LI><A NAME="tex2html2576"
  HREF="node121.html#SECTION00562400000000000000">4.6.2.4 Linking Options</A>
<LI><A NAME="tex2html2577"
  HREF="node121.html#SECTION00562500000000000000">4.6.2.5 Debugging Options</A>
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<H2><A NAME="SECTION00562000000000000000"></A><A NAME="3034"></A>
<BR>
4.6.2 Port Specific Options
</H2>

<P>
The port specific options appear after the global options in the sdcc
--help output.

<P>

<H3><A NAME="SECTION00562100000000000000">
4.6.2.1 Code Generation Options</A>
</H3>

<P>
These options influence the generated assembler code.
<DL>
<DT><STRONG>--pstack-model=[model]</STRONG></DT>
<DD>Used in conjunction with the command
above. Defines the stack model to be used, valid stack models are:

<P>

<UL>
<LI>[<I>small</I>] Selects small stack model. 8 bit stack and frame
pointers. Supports 256 bytes stack size.
</LI>
<LI>[<I>large</I>] Selects large stack model. 16 bit stack and frame
pointers. Supports 65536 bytes stack size.
</LI>
</UL>
</DD>
<DT><STRONG>--pno-banksel</STRONG></DT>
<DD>Do not generate BANKSEL assembler directives.
</DD>
<DT><STRONG>--extended</STRONG></DT>
<DD>Enable extended instruction set/literal offset
addressing mode. Use with care!
</DD>
</DL>

<P>

<H3><A NAME="SECTION00562200000000000000">
4.6.2.2 Optimization Options</A>
</H3>
<DL>
<DT><STRONG>--obanksel=n</STRONG></DT>
<DD>Set optimization level for inserting BANKSELs.
<BR>
<P>

<UL>
<LI>[0] no optimization
</LI>
<LI>[1] checks previous used register and if it is the same then does
not emit BANKSEL, accounts only for labels.
</LI>
<LI>[2] tries to check the location of (even different) symbols and
removes BANKSELs if they are in the same bank. 
<BR><I>Important: There might be problems if the linker script has
data sections across bank borders!</I>
</LI>
</UL>
</DD>
<DT><STRONG>--denable-peeps</STRONG></DT>
<DD>Force the usage of peepholes. Use with care.
</DD>
<DT><STRONG>--no-optimize-goto</STRONG></DT>
<DD>Do not use (conditional) BRA instead of
GOTO.
</DD>
<DT><STRONG>--optimize-cmp</STRONG></DT>
<DD>Try to optimize some compares.
</DD>
<DT><STRONG>--optimize-df</STRONG></DT>
<DD>Analyze the dataflow of the generated code and
improve it.
</DD>
</DL>

<P>

<H3><A NAME="SECTION00562300000000000000">
4.6.2.3 Assembling Options</A>
</H3>
<DL>
<DT><STRONG>--asm=</STRONG></DT>
<DD>Sets the full path and name of an external assembler
to call.
</DD>
<DT><STRONG>--mplab-comp</STRONG></DT>
<DD>MPLAB<A NAME="3066"></A> compatibility option.
Currently only suppresses special gpasm directives.
</DD>
</DL>

<P>

<H3><A NAME="SECTION00562400000000000000">
4.6.2.4 Linking Options</A>
</H3>
<DL>
<DT><STRONG>--link=</STRONG></DT>
<DD>Sets the full path and name of an external linker
to call.
</DD>
<DT><STRONG>--preplace-udata-with=[kword]</STRONG></DT>
<DD>Replaces the default udata
keyword for allocating unitialized data variables with [kword].
Valid keywords are: udata_acs, udata_shr,
udata_ovr.
</DD>
<DT><STRONG>--ivt-loc=n</STRONG></DT>
<DD>Place the interrupt vector table at address <I>n</I>.
Useful for bootloaders.
</DD>
<DT><STRONG>--nodefaultlibs</STRONG></DT>
<DD>Do not link default libraries when linking.
</DD>
<DT><STRONG>--use-crt=</STRONG></DT>
<DD>Use a custom run-time module instead of the defaults.
</DD>
<DT><STRONG>--no-crt</STRONG></DT>
<DD>Don't link the default run-time modules
</DD>
</DL>

<P>

<H3><A NAME="SECTION00562500000000000000">
4.6.2.5 Debugging Options</A>
</H3>

<P>
Debugging options enable extra debugging information in the output
files.
<DL>
<DT><STRONG>--debug-xtra</STRONG></DT>
<DD>Similar to --debug<A NAME="3090"></A>,
but dumps more information.
</DD>
<DT><STRONG>--debug-ralloc</STRONG></DT>
<DD>Force register allocator to dump &lt;source&gt;.d
file with debugging information. &lt;source&gt; is the name of the file
being compiled.
</DD>
<DT><STRONG>--pcode-verbose</STRONG></DT>
<DD>Enable pcode debugging information in translation.
</DD>
<DT><STRONG>--calltree</STRONG></DT>
<DD>Dump call tree in .calltree file.
</DD>
<DT><STRONG>--gstack</STRONG></DT>
<DD>Trace push/pops for stack pointer overflow.
</DD>
</DL>

<P>
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